Patents by Inventor Masahiro Noguchi

Masahiro Noguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for polishing AlGaAs surfaces
    Patent number: 4889586
    Abstract: The present invention polishes the surface of a substrate or epitaxial layer of Al.sub.x Ga.sub.1-x As wherein 0<x<1.0 with a polishing liquid comprising an aqueous alkali hypochlorite solution or a mixture of said aqueous solution with an alkali carbonate, said liquid being regulated to a pH value ranging from 8.0 to 11.0, and further containing a powder such as SiO.sub.2 or a colloidal material such as colloidal silica having a fine particle size to afford a planar mirror-surface to said surface, thereby preventing wafer cracking or pattern flowing during patterning by photomasks and improving yields.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: December 26, 1989
    Assignees: Mitsubishi MonsantoChemical Company, Mitsubishi Kasei Corporation
    Inventors: Masahiro Noguchi, Osamu Yamamoto
  • Heat pump
    Patent number: 4673517
    Abstract: A heat pump medium comprising 2,2,3,3,3-pentafluoropropanol either alone or in admixture with water.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: June 16, 1987
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Masahiro Noguchi, Satoshi Ide
  • Working fluids for Rankine cycle
    Patent number: 4651531
    Abstract: Working fluids for the Rankine cycle comprising dichlorotetrafluoroethane and a member selected from the group consisting of difluoroethane and dichlorofluoromethane.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: March 24, 1987
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Masahiro Noguchi, Satoshi Ide
  • Working fluids for Rankine cycle
    Patent number: 4562995
    Abstract: Working fluids for the Rankine cycle comprising chlorodifluoromethane and one of difluoroethane and dichlorotetrafluoroethane.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: January 7, 1986
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Hideki Aomi, Masahiro Noguchi, Satoshi Ide
  • Working fluids for the Rankine cycle comprising trichlorofluoromethane and 1,1-difluoroethane, isobutane or octafluorocyclobutane
    Patent number: 4557851
    Abstract: Working fluids for the Rankine cycle comprising trichlorofluoromethane and a member selected from the group consisting of difluoroethane, isobutane and octafluorocyclobutane.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: December 10, 1985
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Masahiro Noguchi, Satoshi Ide
  • Working fluids for Rankine cycle
    Patent number: 4530773
    Abstract: Working fluids for the Rankine cycle comprising dichlorotetrafluoroethane and a member selected from the group consisting of difluoroethane and dichlorofluoromethane.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: July 23, 1985
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Masahiro Noguchi, Satoshi Ide
  • Working fluids for rankine cycle
    Patent number: 4465610
    Abstract: Compositions using for working fluids and heat-transfer media comprising 81 to 100 parts by weight of 2,2,3,3,3-pentafluoropropanol and 0 to 19 parts by weight of water.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: August 14, 1984
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Hideki Aomi, Masahiro Noguchi
  • Working fluids for use with rankine cycle
    Patent number: 4459810
    Abstract: Working fluids for use with the Rankine cycle comprising 5 to 50% by weight of tetrafluoromethane, 40 to 95% by weight of trifluoromethane and 0 to 10% by weight of monochlorodifluoromethane.
    Type: Grant
    Filed: May 25, 1982
    Date of Patent: July 17, 1984
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Naonori Enjo, Hideki Aomi, Yuko Harada, Masahiro Noguchi
  • Digital filter
    Patent number: 4352162
    Abstract: A digital filter for a voice synthesis circuit which operates on the basis of the principle of linear predictive coding. More particularly, a digital filter of the lattice type for voice synthesis on the basis of the principle of linear predictive coding and capable of operating with a low clock frequency. Furthermore, the digital filter may use one multiplication circuit and one addition/subtraction circuit as well as containing an attenuation term element.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: September 28, 1982
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomoaki Nyuji, Itaru Kawasaki, Masahiro Noguchi, Masahide Tsukamoto